5、ll)ussomethingaboutAmericayesterday.12.Tom (make)somemistakesinhistest.13.Thetrainhasalready (arrive).14.Jane (send)meadictionarythedaybeforeyesterday.15.They (ask)metothankyourmotherjustnow.16.Thedoctor (s
6、ay)thechildneededanoperation.17.Thedog (die)twohoursago.18.Tomorrowismyfather’sbirthday.I (buy)apresentforhim.19.Maryisn’tintheclassroom. She herhomeworkyet?(finish)20. you (find)thekeyofyourhouse